* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    background-color: #f7f7f7;
    opacity: 0; 
    transition: opacity 0.2s
}
body.active {
    opacity: 1
}
p{
    margin: 0;
    word-wrap:break-word; 
}
a{
    text-decoration: none;
    color: black;
}
// 请求登录
.iot_logon{
    width: 10rem;
    height: 9.8077rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.iot_logon div:nth-child(1){
    font-size: .3846rem;
    text-align: center;
}
.iot_logon div:nth-child(2){
    font-size: .3846rem;
    color: white;
    width: 3.1731rem;
    height: .8077rem;
    background-color: #27ba9b;
    line-height: .8077rem;
    text-align: center;
    margin: .5769rem auto 0;
    border-radius: .4038rem;
}
